11477280 has 48 divisors (see below), whose sum is σ = 36154944. Its totient is φ = 3060480.

The previous prime is 11477269. The next prime is 11477281. The reversal of 11477280 is 8277411.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11477281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11476 + ... + 12435.

It is an arithmetic number, because the mean of its divisors is an integer number (753228).

Almost surely, 2^11477280 is an apocalyptic number.

11477280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11477280 is an abundant number, since it is smaller than the sum of its proper divisors (24677664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11477280 is a wasteful number, since it uses less digits than its factorization.

11477280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23929 (or 23921 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 11477280 is about 3387.8134541323. The cubic root of 11477280 is about 225.5691271067.

The spelling of 11477280 in words is "eleven million, four hundred seventy-seven thousand, two hundred eighty".